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