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