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