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