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