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