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