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