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