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