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)(11,13)(12,14)(15,16)(17,18,24,28,23,27,22,26)(19,20,29,30,21,25,31,32)(2,5)(3,7)(9,10)(11,15)(12,14)(13,16)(17,19,23,21)(18,25,27,20)(22,31,24,29)(26,30,28,32)(9,11,12,16)(10,13,14,15)(17,20)(18,19)(21,27)(22,30)(23,25)(24,32)(26,29)(28,31)(1,3,4,7)(2,6,5,8)(11,16)(13,15)(17,21,23,19)(18,20,27,25)(22,29,24,31)(26,32,28,30)(10,14)(13,15)(17,22,23,24)(18,26,27,28)(19,29,21,31)(20,30,25,32)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.