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