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