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