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