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