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