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