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