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