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