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