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