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