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