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