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