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