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