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