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