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