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