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