Scenes are indicated by their numbers. The arrows leading from each scene show what choice you need to select to go that way. (Note, however, that numbers can change if you're revisiting a scene for the second time and a previous choice is now unavailable). Sometimes, there is no choice about which way to go -- in that case, there is no number.

Stars indicate that choosing a path unlocks something later on. (The dotted line shows where). The letter on a star corresponds with a letter on an arrow -- if you pass a star with "A" on it, you can later follow an arrow with "A" on it.

There is one point (specifically, scene 245) where you get redirected to different locations based on your alignment ("Hero", "Coward", "Killer").

Grey arrows lead to death scenes. Other colours have no significance -- they're just to help keep all the arrows from getting too tangled.

It is very likely that this map contains some errors.

You'll probably need to enlarge this. To do that, you can probably click on it, click on the file name at the top of the resulting image, and then use your browser's zoom functions. Alternatively, you may be able to right-click on it and select some sort of "view image" option. It may work differently for you, however.