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)(21,32)(24,39)(25,35)(26,36)(27,42)(29,43)(30,38)(31,44)(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)(24,31)(28,43)(30,41)(32,40)(33,42)(34,38)(39,44) involution — undirected(13,16,17,30,19,31,18,32)(14,21,33,44,23,38,22,28)(15,24,25,40,26,29,27,41)(20,34,42,43,36,37,35,39)(7,12)(9,11)(13,17,19,18)(14,22,23,33)(15,25,26,27)(16,30,31,32)(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)(16,31)(20,36)(21,38)(25,27)(28,44)(30,32)(35,42)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.