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