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