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