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