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