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