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)(17,18,22,27)(19,25,30,24)(20,29,31,32)(21,26,23,28)(1,3,5,4)(2,6,7,8)(9,11,14,12)(10,15,13,16)(17,19)(18,24)(20,28)(21,32)(22,30)(23,29)(25,27)(26,31)(1,4,5,3)(2,6,7,8)(9,10,14,13)(11,16,12,15)(17,20,21,25,22,31,23,24)(18,19,28,32,27,30,26,29)(9,12,14,11)(10,15,13,16)(17,19)(18,25)(20,26)(21,32)(22,30)(23,29)(24,27)(28,31)(9,13,14,10)(11,16,12,15)(17,21,22,23)(18,26,27,28)(19,29,30,32)(20,25,31,24)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.