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