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