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