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