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