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