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