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