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