On my previous attempt I forgot to include the colors of some suns as well as some binary and trinary systems (I have a less hideous way to represent binaries and trinaries, but Hexographer is being buggy). Oh, and I used Hexographer to make did.
I have a black and white version that I prefer aesthetically, however instantly seeing the star colors is useful in play.
The dotted red lines indicate multi-system "Dominions" held by especially powerful System Lords/Houses.
To the "south" of the map are the more civilized/normal regions of Human space, where things change from Humanspace Empires to Stars Without Number. To the "north" of the map is howling space wilderness and barbarity, the Terminal Space region.
Also, the hex numbers are bunged up on this version. Oops...