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