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