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