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