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