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