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