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