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