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