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