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