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