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)(23,32)(24,29)(25,30)(26,36)(27,31)(28,34)(33,35)(5,7)(6,10)(8,15)(9,14)(11,19)(12,18)(13,16)(17,20)(21,23,25,29,27,33,26,34)(22,28,36,35,31,24,30,32)(1,2,3,4)(5,8)(6,11)(7,13)(9,16)(10,17)(12,20)(14,15)(18,19)(21,24)(22,29)(23,30)(25,32)(26,35)(27,28)(31,34)(33,36)(8,16)(11,20)(13,15)(17,19)(23,33)(24,28)(29,34)(32,35) involution — undirected(7,14)(10,18)(13,15)(17,19)(21,25,27,26)(22,30,31,36)(23,29,33,34)(24,35,28,32)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.