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