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