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