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