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