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