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