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