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