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