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