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