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