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