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