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