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