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)(17,18,23,36,22,28,21,27)(19,24,37,47,32,41,31,40)(20,26,33,25,35,42,34,43)(29,44,45,38,30,39,46,48)(1,3,5,8)(2,6,4,7)(9,10)(11,15)(12,14)(13,16)(17,19)(18,24)(20,29)(21,31)(22,32)(23,37)(25,38)(26,44)(27,40)(28,41)(30,35)(33,45)(34,46)(36,47)(39,42)(43,48)(1,2,5,4)(3,6,8,7)(9,11)(10,13)(12,16)(14,15)(17,20)(18,25)(19,29)(21,33)(22,35)(23,34)(24,38)(26,36)(27,42)(28,43)(30,32)(31,45)(37,46)(39,40)(41,48)(44,47)(1,2,5,4)(3,7,8,6)(11,16)(13,15)(17,20)(18,26)(19,30)(21,34)(22,35)(23,33)(24,39)(25,36)(27,43)(28,42)(29,32)(31,45)(37,46)(38,40)(41,44)(47,48)(1,4,5,2)(3,7,8,6)(10,14)(13,15)(17,21,22,23)(18,27,28,36)(19,31,32,37)(20,33,35,34)(24,40,41,47)(25,42,43,26)(29,45,30,46)(38,39,48,44)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.