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