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