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)(13,14)(15,17)(16,18)(19,20)(21,22,26,27,25,30,24,29)(23,31,34,36,33,28,32,35)(1,3,4,2)(6,9)(10,11)(13,15,16,19)(14,17,18,20)(22,27)(24,26)(28,35)(29,30)(31,36)(32,34)(6,9)(10,11)(14,18)(15,19)(21,23,25,33)(22,28,30,31)(24,32,26,34)(27,35,29,36)(5,7,8,12)(6,10,9,11)(22,27)(24,26)(28,35)(29,30)(31,36)(32,34)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.