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