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