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