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