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