One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,5)(3,7,8,6)(10,14)(11,13)(17,18,23,26)(19,24,29,31)(20,22,25,21)(27,30,28,32)(2,5)(6,7)(9,10)(11,16)(12,14)(13,15)(17,19,23,29)(18,24,26,31)(20,30,25,32)(21,27,22,28)(10,15,14,16)(17,20,22,26,23,25,21,18)(19,24,28,30,29,31,27,32)(1,3,4,8)(2,6,5,7)(9,11,12,13)(10,16,14,15)(17,21,23,22)(18,20,26,25)(19,27,29,28)(24,30,31,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.