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