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