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