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