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