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)(35,40)(36,43)(37,41)(38,39)(42,47)(44,48)(45,46)(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)(34,39)(36,40)(37,45)(42,48)(3,10)(5,8)(11,14)(13,16)(17,20)(18,25)(19,28)(21,26)(22,30)(23,31)(24,32)(27,29)(33,35,38,43)(34,40,39,36)(37,42,45,48)(41,47,46,44)(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)(33,36)(34,35)(37,44)(38,40)(39,43)(41,42)(45,47)(46,48)(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)(33,35)(34,40)(36,39)(37,42)(38,43)(41,47)(44,46)(45,48)(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)(33,37)(34,41)(35,42)(36,44)(38,45)(39,46)(40,47)(43,48)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.