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