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