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