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