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