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