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