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