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