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