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