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