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