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