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