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)(19,23)(20,28)(21,22)(24,29)(25,27)(26,31)(30,32)(33,34,38,41)(35,36,39,44)(37,40,46,48)(42,43,45,47)(2,7)(3,11)(5,14)(12,15)(17,18)(19,25)(20,28)(21,22)(23,27)(24,29)(26,30)(31,32)(33,35,38,39)(34,36,41,44)(37,45,46,42)(40,47,48,43)(2,7)(4,9)(8,10)(12,15)(18,22)(23,25)(24,28)(30,31)(33,35)(34,36)(37,42)(38,39)(40,43)(41,44)(45,46)(47,48) involution — undirected(1,3,6,11)(2,8,7,10)(4,12,9,15)(5,13,14,16)(17,19)(18,23)(20,26)(21,27)(22,25)(24,30)(28,31)(29,32)(33,35)(34,36)(37,42)(38,39)(40,43)(41,44)(45,46)(47,48)(1,4,6,9)(2,5,7,14)(3,12,11,15)(8,13,10,16)(17,18)(19,23)(20,24)(21,22)(25,27)(26,30)(28,29)(31,32)(33,36)(34,39)(35,41)(37,43)(38,44)(40,45)(42,48)(46,47)(1,5)(2,9)(3,13)(4,7)(6,14)(8,15)(10,12)(11,16)(17,20)(18,24)(19,26)(21,29)(22,28)(23,30)(25,31)(27,32)(33,37)(34,40)(35,42)(36,43)(38,46)(39,45)(41,48)(44,47) 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.