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