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