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