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