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)(19,23)(20,29)(21,25)(22,26)(24,28)(27,32)(30,31)(33,34,39,40)(35,41,36,38)(37,45,47,42)(43,46,44,48)(1,3,7,5)(2,8,6,10)(4,11,12,13)(9,15,14,16)(17,19,22,27)(18,23,26,32)(20,21,28,31)(24,30,29,25)(34,40)(35,36)(42,45)(43,44)(4,12)(9,14)(11,13)(15,16)(19,27)(20,28)(23,32)(24,29)(33,35,39,36)(34,38,40,41)(37,43,47,44)(42,46,45,48)(1,4)(2,9)(3,11)(5,13)(6,14)(7,12)(8,15)(10,16)(17,20)(18,24)(19,21)(22,28)(23,30)(25,32)(26,29)(27,31)(33,36,39,35)(34,41,40,38)(37,44,47,43)(42,48,45,46)(1,5,7,3)(2,8,6,10)(4,13,12,11)(9,15,14,16)(17,18)(19,23)(20,24)(21,30)(22,26)(25,31)(27,32)(28,29)(33,37,39,47)(34,42,40,45)(35,43,36,44)(38,46,41,48)(1,6,7,2)(3,10,5,8)(4,9,12,14)(11,15,13,16)(17,21)(18,25)(19,28)(20,27)(22,31)(23,24)(26,30)(29,32)(33,38,39,41)(34,35,40,36)(37,46,47,48)(42,43,45,44)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.