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