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