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