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)(27,34)(28,35)(29,36)(13,15,17,20)(14,18,16,19)(21,22,25,28,24,26,32,35)(23,29,31,34,30,36,33,27)(5,7,8,12)(6,9,10,11)(14,16)(18,19)(21,23,24,30)(22,27,26,34)(25,33,32,31)(28,36,35,29)(2,4)(13,16,17,14)(15,19,20,18)(23,30)(27,34)(29,36)(31,33)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.