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