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