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