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