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