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