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