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