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