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)(17,18,22,23)(19,20,25,28)(21,24,29,30)(26,27,31,32)(34,38)(35,41)(36,44)(46,48)(1,3,7,6)(2,8,9,12)(4,11,14,13)(5,10,15,16)(18,23)(19,25)(24,30)(26,31)(33,34,37,38)(35,42,41,39)(36,40,44,45)(43,48,47,46)(2,9)(4,14)(8,12)(11,13)(17,19)(18,20)(21,26)(22,25)(23,28)(24,27)(29,31)(30,32)(33,35,37,41)(34,39,38,42)(36,43,44,47)(40,46,45,48)(1,4,7,14)(2,10,9,16)(3,13,6,11)(5,12,15,8)(17,20)(18,19)(21,27)(22,28)(23,25)(24,26)(29,32)(30,31)(33,34)(35,39)(36,40)(37,38)(41,42)(43,46)(44,45)(47,48)(1,5)(2,11)(3,10)(4,12)(6,16)(7,15)(8,14)(9,13)(17,21,22,29)(18,24,23,30)(19,26,25,31)(20,27,28,32)(33,36)(34,40)(35,43)(37,44)(38,45)(39,46)(41,47)(42,48)(1,6,7,3)(2,8,9,12)(4,13,14,11)(5,10,15,16)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.