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