One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(7,8)(9,12)(10,11)(13,14)(15,16,19,23,20,24,32,38)(17,21,27,35,26,34,42,45)(18,28,29,36,30,37,31,22)(25,39,41,44,40,46,43,33)(3,4,5,6)(8,11)(12,14)(15,17)(16,21)(18,25)(19,27)(20,26)(22,33)(23,35)(24,34)(28,39)(29,41)(30,40)(31,43)(32,42)(36,44)(37,46)(38,45)(4,6)(9,13)(12,14)(15,18,20,30)(16,22,24,36)(17,25,26,40)(19,31,32,29)(21,33,34,44)(23,37,38,28)(27,43,42,41)(35,46,45,39)(7,9,10,13)(8,12,11,14)(17,26)(21,34)(25,40)(27,42)(33,44)(35,45)(39,46)(41,43)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.