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