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