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