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