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