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