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