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