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