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