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