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