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