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