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