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