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