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