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