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