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