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