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