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