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