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