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