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