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