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