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