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