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