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