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