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