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