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