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