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