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)(15,19,16,18)(21,22)(23,28)(24,29)(25,30)(26,27)(31,33)(32,34)(35,36)(2,4)(13,14,17,20)(15,18,16,19)(22,27)(23,31)(29,32)(30,36)(1,2)(3,4)(5,6)(7,9)(8,10)(11,12)(13,14)(15,18)(16,19)(17,20)(21,23,26,31)(22,28,27,33)(24,30,34,36)(25,32,35,29)(13,15,17,16)(14,18,20,19)(21,24)(22,29)(23,30)(25,28)(26,34)(27,32)(31,36)(33,35)(5,7,8,12)(6,9,10,11)(13,16,17,15)(14,19,20,18)(21,25)(22,30)(23,32)(24,33)(26,35)(27,36)(28,34)(29,31)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.