One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,8)(3,7,5,4)(10,13)(14,16)(17,18,23,22)(19,24,29,28)(20,30,31,25)(21,26,27,32)(1,3,6,5)(2,7,8,4)(9,10,12,13)(11,14,15,16)(17,19,23,29)(18,24,22,28)(20,27,31,21)(25,26,30,32)(2,8)(4,7)(17,20,23,31)(18,25,22,30)(19,21,29,27)(24,32,28,26)(1,4)(2,3)(5,8)(6,7)(9,11,12,15)(10,14,13,16)(17,20)(18,25)(19,27)(21,29)(22,30)(23,31)(24,26)(28,32)(1,3,6,5)(2,7,8,4)(17,21,23,27)(18,26,22,32)(19,20,29,31)(24,30,28,25)(1,5,6,3)(2,4,8,7)(17,22,23,18)(19,28,29,24)(20,30,31,25)(21,26,27,32)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.