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