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