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