One vertex per element, one color per generator, with an edge from x to x·s.
(2,3)(5,6,10,14,11,15,9,22)(7,12,18,28,17,26,23,27)(8,13,20,31,21,32,24,30)(16,33,35,36,34,25,19,29)(1,2,4,3)(5,7,10,18,11,17,9,23)(6,12,14,28,15,26,22,27)(8,19,20,16,21,35,24,34)(13,29,31,33,32,36,30,25)(5,8)(6,13)(7,16)(9,24)(10,20)(11,21)(12,25)(14,31)(15,32)(17,34)(18,35)(19,23)(22,30)(26,33)(27,36)(28,29) involution — undirected(1,3,4,2)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.