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