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