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