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