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