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