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