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