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