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