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