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