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