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