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