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