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