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