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