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