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