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