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