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