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