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