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