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