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