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