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