I drew a map of the labyrinth and decided to share with the community Here some hints:
1. The map contains spoilers! If you are playing for the first time, try to figure the maze out for yourself first!
1. I have divided the map in three parts, so it should be easier to understand.
2. Usually, every area have two exits, on the west and on the south-east. They correspond to the left and bottom arrows of each block on the map.
4. Key areas are highlighted with colors. There are two occurences in the maze, when some sort of key is required to proceed further. I've marked such occurences with the color of the area, where the key is stored.
5. Key areas usually have only one exit and it leads to the previous area.
Hope that helps.
[attachment=3639:ia_lab.gif]