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