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