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