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