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