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