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