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