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