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