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