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