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