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