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