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