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