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