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