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