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