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