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