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