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)(20,26)(21,24)(22,27)(23,28)(30,31)(32,39)(36,38)(40,41)(7,11)(10,12)(14,19)(15,21)(17,26)(23,27)(29,30,34,31)(32,37,39,35)(33,38,42,36)(40,43,41,44)(5,7)(6,10)(8,12)(9,11)(13,15,18,21)(14,16,19,24)(17,22,26,28)(20,23,25,27)(29,31,34,30)(32,35,39,37)(33,38,42,36)(40,43,41,44)(1,2)(3,4)(5,8,9,6)(7,12,11,10)(13,16)(14,15)(17,27)(18,24)(19,21)(20,28)(22,25)(23,26)(29,32,34,39)(30,35,31,37)(33,41,42,40)(36,44,38,43)(13,17)(14,20)(15,22)(16,23)(18,26)(19,25)(21,28)(24,27)(29,33,34,42)(30,36,31,38)(32,40,39,41)(35,43,37,44)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.