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