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