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