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