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