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