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