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