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