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