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