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