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