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