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