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