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