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