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