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