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)(11,16)(12,15)(13,14)(17,18)(19,24)(20,25)(21,23)(22,26)(27,32)(28,29)(30,31)(2,5)(6,8)(9,10)(11,16)(12,15)(13,14)(18,23)(20,28)(22,24)(25,27)(29,31)(30,32) involution — undirected(1,3,4,7)(2,6,5,8)(10,14)(15,16)(17,19,21,26)(18,24,23,22)(20,29,30,27)(25,28,31,32)(9,11,13,12)(10,15,14,16)(17,20,22,28,21,30,24,32)(18,25,26,29,23,31,19,27)(2,5)(6,8)(9,12,13,11)(10,15,14,16)(18,23)(19,26)(20,30)(28,32)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.