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