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