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