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