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