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