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