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