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