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