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