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