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