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