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