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