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