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