One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(7,8)(9,10,13,15)(11,14,12,16)(17,18)(19,24)(20,25)(21,27)(22,37)(23,28)(26,33)(29,38)(30,42)(31,39)(32,41)(34,44)(35,40)(36,43)(45,48)(46,47)(1,2,5,6)(3,7,4,8)(9,11,13,12)(10,14,15,16)(17,19,23,32)(18,24,28,41)(20,30,34,45)(21,35,22,31)(25,42,44,48)(26,38,43,47)(27,40,37,39)(29,36,46,33)(1,3,5,4)(2,7,6,8)(9,12,13,11)(10,14,15,16)(17,20)(18,25)(19,29)(21,36)(22,33)(23,34)(24,38)(26,37)(27,43)(28,44)(30,35)(31,45)(32,46)(39,48)(40,42)(41,47)(1,4,5,3)(2,7,6,8)(17,20)(18,26)(19,30)(21,33)(22,36)(23,34)(24,38)(25,37)(27,44)(28,43)(29,35)(31,46)(32,45)(39,42)(40,48)(41,47)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.