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