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