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