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