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