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