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