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