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