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)(21,22,26,34,25,28,24,29)(23,30,33,27,31,36,32,35)(1,2,4,3)(6,10)(11,12)(13,14,16,17)(15,19,20,18)(21,23)(22,27)(24,33)(25,31)(26,32)(28,35)(29,36)(30,34)(1,2,4,3)(5,7,9,8)(6,11,10,12)(13,15,16,20)(14,18,17,19)(23,31)(27,35)(30,36)(32,33)(1,3,4,2)(5,8,9,7)(6,11,10,12)(22,28)(27,35)(29,34)(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.