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