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