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