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