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