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