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