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