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