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