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)(19,27)(20,30)(21,26)(22,24)(23,29)(25,31)(28,32)(1,3)(2,5)(4,8)(6,7)(9,11,13,16)(10,14,12,15)(18,24)(19,28)(25,30)(26,29)(9,10,13,12)(11,15,16,14)(17,19,23,30,22,28,21,25)(18,20,26,27,24,31,29,32)(2,6)(5,7)(17,20,22,31)(18,25,24,30)(19,29,28,26)(21,32,23,27)(3,8)(5,7)(9,12,13,10)(11,14,16,15)(17,21,22,23)(18,26,24,29)(19,25,28,30)(20,27,31,32)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.