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