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