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