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