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)(31,35)(32,36)(33,34)(37,43)(38,42)(39,44)(40,41)(1,2,3,4)(15,21)(19,24)(22,27)(26,28)(30,34)(35,42)(36,40)(43,44)(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)(29,31,33,38)(30,35,34,42)(32,39,41,37)(36,44,40,43)(5,8,9,12)(6,10,7,11)(13,15)(14,19)(16,22)(17,21)(18,24)(20,26)(23,27)(25,28)(29,30)(31,35)(32,40)(33,34)(36,41)(37,44)(38,42)(39,43)(13,16,17,23)(14,20,18,25)(15,22,21,27)(19,26,24,28)(29,32)(30,36)(31,37)(33,41)(34,40)(35,43)(38,39)(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.