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