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