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