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