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