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