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