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