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