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