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