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