Any sailmaker can put in a set of reef points for a bit over $100 usually. Well worth having. Get two, if you venture farther afield, three if you plan to sail the Texas200 ...)
There are tons of digrams (google "spinnaker rigging diagram"). Some of them are very nice and in perspective.
However, most of them are for keel boats, they show two sets of sheets (lazy and working). For the DS, we only use one set of sheets and they are lead to the back of the boat (you appear to have blocks there) and then forward (you appear to have cleats on your side decks -- looked that way from the picture). But I'm sure you can make the mental adjustment.
For example, in this diagram:

simply ignore the "blue" lines (and note that on the windward side, the red line would need to go through the pole).
The second difference is that the up and downhaul (black and yellow) should be fixed to the middle of the pole, not near the end as in the diagram (and also, there's no need for a bridle, as you'll find on some bigger boats).
I fly my spinnaker from a plastic tub in the forward end of cockpit, with all the lines rigged ahead of time. As you want to launch the spinnaker on the leeward side, that's where your bag or bucket needs to be. In other words, you need to anticipate where the wind will be from at the point you'll launch the chute. If you are not in a race, you can always adjust your course to match the setup, raise the sail and then jibe as necessary.
Finally, all sheets and the halyard need to be led so that they are underneath the jib sheet, otherwise you'll have difficulties getting the spinnaker to set forward of the jib

Try it out at the dock, or on land (when there's just enough wind to fill the sail). Also a good time to get the tension right in the bungee portion of the up-haul.
I assume you remember how to fly the spinnaker? Pole at right angles to the wind direction and the tip raised or lowered so that both tack and clew of the sail are at the same height. Enough tension on the sheet so that the luff (windward edge) of the sail just begins to curl.