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