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