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