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