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