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