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