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