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