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