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