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