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