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