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