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