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