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