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