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