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)(17,18,21,23)(19,24,27,22)(20,28,30,25)(26,31,29,32)(33,34)(35,38)(36,44)(37,40)(39,46)(41,43)(42,48)(45,47)(1,2,6,3)(4,9,12,7)(5,8,13,10)(11,15,16,14)(17,19,21,27)(18,22,23,24)(20,26,30,29)(25,31,28,32)(33,34)(35,41)(36,39)(37,40)(38,43)(42,48)(44,46)(45,47)(2,3)(7,9)(8,10)(14,15)(18,23)(22,24)(25,28)(31,32)(33,34,37,40)(35,38,43,41)(36,39,46,44)(42,47,45,48)(1,3,6,2)(4,9,12,7)(5,10,13,8)(11,15,16,14)(17,18)(19,22)(20,25)(21,23)(24,27)(26,31)(28,30)(29,32)(33,34)(35,41)(36,39)(37,40)(38,43)(42,48)(44,46)(45,47)(1,4)(2,7)(3,9)(5,11)(6,12)(8,14)(10,15)(13,16)(17,19)(18,24)(20,29)(21,27)(22,23)(25,31)(26,30)(28,32)(33,35,37,43)(34,38,40,41)(36,45,46,42)(39,48,44,47)(1,5,6,13)(2,8,3,10)(4,11,12,16)(7,14,9,15)(17,20)(18,25)(19,26)(21,30)(22,31)(23,28)(24,32)(27,29)(33,36)(34,39)(35,42)(37,46)(38,47)(40,44)(41,48)(43,45)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.