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)(17,18,21,27,23,28,22,26)(19,29,31,24,33,38,32,39)(20,25,35,42,34,40,36,41)(30,43,45,37,44,48,46,47)(1,3)(2,6,8,9)(4,10)(5,11)(7,13,14,15)(12,16)(17,19,22,32,23,33,21,31)(18,24,27,38,28,39,26,29)(20,30,36,46,34,44,35,45)(25,37,42,48,40,47,41,43)(1,4,5,12)(2,7,8,14)(3,10,11,16)(6,13,9,15)(17,20)(18,25)(19,30)(21,35)(22,36)(23,34)(24,37)(26,41)(27,42)(28,40)(29,43)(31,45)(32,46)(33,44)(38,48)(39,47)(20,34)(25,40)(30,44)(35,36)(37,47)(41,42)(43,48)(45,46) 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.