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