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