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)(19,23)(20,24)(21,25)(22,26)(27,30)(28,31)(29,32)(33,34)(35,41)(36,39)(37,43)(38,40)(42,47)(44,46)(45,48) involution — undirected(1,2,5,6)(3,7,9,10)(4,8,12,13)(11,14,15,16)(17,18,22,26)(19,23,24,20)(21,25,29,32)(27,30,31,28)(33,35)(34,37)(36,42)(38,43)(39,45)(40,41)(44,47)(46,48)(2,6)(3,9)(4,12)(14,16)(19,24)(20,23)(21,29)(25,32)(33,34,38,40)(35,37,43,41)(36,44,46,39)(42,47,48,45)(1,3,5,9)(2,7,6,10)(4,11,12,15)(8,14,13,16)(17,19)(18,23)(20,26)(21,27)(22,24)(25,30)(28,32)(29,31)(33,34)(35,37)(36,44)(38,40)(39,46)(41,43)(42,47)(45,48)(1,2)(3,10)(4,8)(5,6)(7,9)(11,16)(12,13)(14,15)(17,20,22,23)(18,24,26,19)(21,28,29,30)(25,31,32,27)(33,36,38,46)(34,39,40,44)(35,42,43,48)(37,45,41,47)(1,4)(2,8)(3,11)(5,12)(6,13)(7,14)(9,15)(10,16)(17,21)(18,25)(19,27)(20,28)(22,29)(23,30)(24,31)(26,32)(33,37)(34,35)(36,45)(38,41)(39,42)(40,43)(44,48)(46,47) 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.