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