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