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