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