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