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)(23,30)(24,29)(25,27)(26,31)(28,33)(32,35)(34,36)(5,7,10,6)(8,12,9,11)(13,15,16,20)(14,17,18,19)(21,23)(22,26)(24,31)(25,32)(27,34)(28,35)(29,30)(33,36)(5,8,10,9)(6,11,7,12)(15,20)(17,19)(22,27)(25,33)(26,34)(28,29)(30,35)(32,36)(5,9,10,8)(6,11,7,12)(14,18)(15,20)(22,28)(23,31)(25,33)(26,34)(27,29)(30,35)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.