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