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