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