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