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