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