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