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