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