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